A dual lumen nasal oxygen cannula that reduces pressure on the nose

Abstract

The double-hole nasal oxygen tube for relieving nasal face pressure of the application comprises an oxygen joint, an oxygen supply pipe, a tee joint, an oxygen supply branch pipe and a branch pipe joint, a sliding buckle is arranged on the oxygen supply branch pipe, and the sliding buckle is buckled on one end of the two oxygen supply branch pipes close to the oxygen supply pipe and parallel to each other; a pulley and an inclined slide are arranged on the sliding buckle, one end of the inclined slide is close to the surface of the two oxygen supply branch pipes, the other end is away from the two oxygen supply branch pipes, and the pulley is embedded on the inclined slide and is in rolling connection with the inclined slide. Through the pulley, the oxygen flow can be adjusted to a suitable one according to the breathing condition of the patient and the suggestion of the doctor. The problem that the oxygen supply amount of the existing nasal oxygen tube cannot be adjusted or is difficult to adjust, affecting the use of the patient, is solved. Skin pressure injury is effectively reduced or avoided, the skin of the patient's nose and face is protected, the problem that the nasal congestion joint causes pressure on the nasal cavity is solved, and through the increase of the buffer hole, the nasal oxygen tube can not only provide effective oxygen supply, but also reduce the irritation and discomfort of the nasal cavity.

Description

Technical Field

[0001] This application relates to the field of medical care technology, and in particular to a dual-port nasal oxygen tube for relieving pressure on the nasal face. Background Technology

[0002] Nasal cannulas, also known as oxygen inhalation tubes or nasal cannulas, are important medical devices widely used in various scenarios requiring oxygen therapy in the healthcare field. Their primary function is to connect to an oxygen delivery system, providing patients with a stable and continuous supply of oxygen. They are suitable for situations where the body cannot supply oxygen normally due to various reasons, such as chronic obstructive pulmonary disease (COPD), respiratory diseases, and hypoxia symptoms caused by environmental changes.

[0003] Most nasal oxygen cannulas are designed with single or double nasal plugs, which are fixed to the patient's nose and face using simple methods (such as tape, ear loops, etc.). When using a nasal oxygen cannula, connect the flared end of the cannula to the oxygen inhalation device, hang the headband or ear loop on the head or ear, and insert the nasal plug into the nostril to inhale oxygen.

[0004] During use, it is crucial to ensure an appropriate oxygen flow rate, especially for patients requiring continuous oxygen therapy, such as those with chronic respiratory diseases or postoperative recovery. These patients need to wear nasal oxygen cannulas for extended periods, and excessively high or low flow rates should be avoided to prevent adverse effects. Simultaneously, the patient's respiratory status should be closely monitored, and oxygen supply adjusted promptly. However, existing nasal oxygen cannulas use a single delivery method, with no adjustable or difficult-to-adjust oxygen volume, affecting patient usability. Furthermore, the nasal cannula connector can cause pressure on the nasal cavity, uneven oxygen distribution, and irritation and discomfort. Utility Model Content

[0005] To address the issues of pressure injury to the nose and face caused by continuous oxygen use, and the problems of existing nasal oxygen cannulas using a single delivery method, making oxygen delivery difficult to adjust or affecting patient comfort, thus affecting patient use.

[0006] This application provides a dual-hole nasal oxygen tube for relieving pressure on the nasal face, comprising: an oxygen delivery tube, an oxygen connector, an oxygen delivery branch tube, and a branch tube connector.

[0007] One end of the oxygen delivery tube is connected to one end of the oxygen connector, and the other end of the oxygen connector is connected to the oxygen source;

[0008] The other end of the oxygen supply pipe is connected to one end of the two oxygen supply branch pipes that are parallel to each other, and the other ends of the two oxygen supply branch pipes are connected to the branch pipe joint;

[0009] The branch pipe connector is equipped with a nasal plug connector, and the nasal plug connector, the branch pipe connector and the oxygen delivery branch pipe are all connected.

[0010] The oxygen supply branch pipe is provided with a sliding buckle, and the sliding buckle is fastened to one end of the two oxygen supply branch pipes that are close to the oxygen supply pipe and are side by side;

[0011] The sliding buckle is equipped with a pulley and an inclined slide. One end of the inclined slide is close to the surface of the two oxygen supply branches, and the other end is away from the two oxygen supply branches.

[0012] The pulley is embedded in the inclined slide and is in rolling connection with the inclined slide.

[0013] One feasible implementation also includes a T-junction;

[0014] The three-way pipe is located between the oxygen supply pipe and the oxygen supply branch pipe. The three-way pipe has a first interface on one side and a second interface and a third interface on the other side.

[0015] The first interface is connected to the oxygen supply pipe, and the second and third interfaces are respectively connected to the two oxygen supply branch pipes.

[0016] In one feasible implementation, both oxygen delivery branches are equipped with snap-on sliding fasteners.

[0017] The snap-on sliding fastener includes a snap-on, a pressure-reducing layer, and an adhesive layer. One side of the pressure-reducing layer is fixed to the snap-on, and the adhesive layer is attached to the side of the pressure-reducing layer away from the snap-on.

[0018] The buckle is fastened to the oxygen supply branch pipe and is slidably connected to the oxygen supply branch pipe.

[0019] In one feasible implementation, the pressure-reducing layer is made of foam material, and the adhesive layer is made of silicone gel or medical pressure-sensitive adhesive.

[0020] In one feasible implementation, the thickness of the pressure-reducing layer is 2-3 mm, and the thickness of the adhesive layer is 0.8-1.5 mm;

[0021] The inner diameter of the buckle is the same as the diameter of the oxygen supply branch pipe, the width of the pressure-reducing layer and the adhesive layer is also the same as the diameter of the oxygen supply branch pipe, and the length of the pressure-reducing layer and the adhesive layer is 0.5cm.

[0022] In one feasible implementation, the nasal plug connector is an inverted trapezoid, and the width of the nasal plug connector gradually narrows from the end connected to the branch pipe connector to the end away from the branch pipe connector.

[0023] In one feasible implementation, the end of the nasal plug connector away from the branch connector is provided with multiple buffer holes.

[0024] In one feasible implementation, the nasal plug connector is made of silicone.

[0025] In one feasible implementation, foam material is provided below both the nasal plug connector and the branch pipe connector, and the thickness of the foam material is 2-3mm.

[0026] The foam material includes an upper layer, a middle layer, and a bottom film. The upper layer is an adhesive layer, the middle layer is a composite polyurethane foam core, and the bottom film is a PU waterproof protective layer.

[0027] In one feasible implementation, the total length of the nasal oxygen cannula is 150-180 mm.

[0028] As can be seen from the above, this application provides a dual-hole nasal oxygen cannula that reduces pressure on the nose and face, effectively reducing or avoiding pressure injury to the skin, protecting the integrity of the patient's facial and nasal skin, improving comfort, and obtaining high patient cooperation to achieve better treatment results. It is suitable for patients who need continuous low-flow oxygen inhalation and who are malnourished or have impaired facial skin integrity. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0030] Figure 1 A schematic diagram of a dual-hole nasal oxygen cannula for relieving nasal and facial pressure, as shown in an exemplary embodiment of this application;

[0031] Figure 2 A snap-on sliding fastener is shown as an exemplary embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of a nose plug connector, illustrating an exemplary embodiment of this application.

[0033] Explanation of icon numbers:

[0034] 10-Oxygen delivery tube; 20-Oxygen connector; 30-Oxygen delivery branch tube; 40-Branch tube connector; 50-T-connector; 31-Sliding buckle; 32-Snap-on sliding fastener; 321-Snap-on; 322-Pressure relief layer; 323-Adhesive layer; 41-Nose plug connector; 411-Buffer hole. Detailed Implementation

[0035] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, mechanisms, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of how embodiments of the present invention are implemented.

[0036] Most nasal oxygen cannulas are designed with single or double nasal plugs, secured to the patient's nose and face using simple methods such as tape or ear loops. To use a nasal oxygen cannulas, connect the cannula to the oxygen delivery device, hang the headband or ear loop on the head or ear, and insert the nasal plug into the nostril. During use, it is crucial to ensure an appropriate oxygen flow rate, especially for patients requiring continuous oxygen therapy, such as those with chronic respiratory diseases or postoperative recovery. Excessively high or low flow rates can adversely affect the patient. Simultaneously, the patient's respiratory status should be closely monitored, and oxygen supply adjusted promptly. However, existing nasal oxygen cannulas suffer from pressure injuries to the nose and face due to continuous oxygen use, and their single delivery method. The inability or difficulty in adjusting the oxygen delivery volume, or discomfort during oxygen delivery, all negatively impact patient experience. Furthermore, the nasal plug connector can cause pressure on the nasal cavity and uneven oxygen distribution.

[0037] To address the aforementioned problems, this application provides a dual-hole nasal oxygen cannula to reduce pressure on the nasal face, as described above. Figure 1 As shown, it includes: oxygen delivery tube 10, oxygen connector 20, oxygen delivery branch tube 30, and branch tube connector 40.

[0038] One end of the oxygen delivery tube 10 is connected to one end of the oxygen connector 20, and the other end of the oxygen connector 20 is connected to the oxygen source. The oxygen delivery tube 10 is used to receive oxygen from the oxygen source and deliver it to the two branch pipes. The oxygen connector 20 is used to connect with the oxygen source (such as an oxygen cylinder, oxygen generator, etc.) and has good sealing and connection stability to prevent oxygen leakage.

[0039] The other end of the oxygen delivery tube 10 is connected to one end of two parallel oxygen delivery branch tubes 30, and the other ends of the two oxygen delivery branch tubes 30 are connected to a branch tube connector 40. The branch tube connector 40 is equipped with a nasal plug connector 41, and the nasal plug connector 41, branch tube connector 40, and oxygen delivery branch tubes 30 are all connected. The nasal plug connector 41 is inserted into the patient's nostril to ensure that oxygen can directly and effectively enter the nasal cavity. The design of the branch tube connector 40 must ensure the stability and ease of replacement of the nasal plug connector 41.

[0040] The oxygen supply branch pipe 30 is equipped with a sliding buckle 31, which engages with the two oxygen supply branch pipes 30 at their ends near the oxygen supply pipe 10 and side by side. The sliding buckle 31 is equipped with a pulley and an inclined slide. One end of the inclined slide is close to the surface of the two oxygen supply branch pipes 30, and the other end is away from the two oxygen supply branch pipes 30. The pulley is embedded in the inclined slide and is in rolling connection with the inclined slide. By changing the position of the pulley on the slide, the size of the oxygen channel in the branch pipe can be adjusted, thereby regulating the oxygen flow rate.

[0041] In this embodiment, the dual-port nasal oxygen cannula for reducing nasal and facial pressure is used by first connecting an oxygen source, then aligning the oxygen connector 20 with the oxygen source, ensuring a tight, leak-free connection. Next, gently insert the nasal plug connector 41 into the patient's nostril, ensuring a good seal. Then, hang the oxygen delivery tube 30 on the patient's head or ear to secure the nasal oxygen cannula.

[0042] Secondly, select a suitable position on the inclined slide by sliding the pulley on the sliding buckle 31. When the pulley is close to the surface of the branch tube, the oxygen channel narrows and the flow rate decreases; when the pulley is away from the surface of the branch tube, the oxygen channel widens and the flow rate increases. Adjust to an appropriate oxygen flow rate according to the patient's breathing condition and the doctor's advice. Finally, closely monitor the patient's breathing condition during use, and adjust the oxygen flow rate or take other necessary medical measures in a timely manner if any abnormalities occur.

[0043] This embodiment solves the problem of non-adjustable or difficult-to-adjust oxygen delivery in existing nasal oxygen cannulas by introducing a sliding buckle 31 and an inclined slide. Patients or medical staff can adjust the oxygen flow rate as needed simply by operating the position of the pulley on the inclined slide, without having to replace the entire nasal oxygen cannula or adjust the pressure of the oxygen source.

[0044] In some embodiments of this application, the dual-port nasal oxygen cannula for relieving nasal and facial pressure also includes a three-way tube 50; the three-way tube 50 is disposed between the oxygen delivery tube 10 and the oxygen delivery branch tube 30, and a first interface 51 is provided on one side of the three-way tube 50, and a second interface 52 and a third interface 53 are provided on the other side; the first interface 51 is connected to the oxygen delivery tube 10, and the second interface 52 and the third interface 53 are respectively connected to the two oxygen delivery branch tubes 30.

[0045] The tee pipe 50 is a three-way connecting fitting used to split and connect oxygen supply pipe 10 and oxygen supply branch pipe 30, solving the problem of evenly distributing oxygen from a single pipe to two branch pipes.

[0046] In this embodiment, the three-way connector 50 allows for more even distribution of oxygen into both nostrils, avoiding discomfort or poor treatment efficacy caused by uneven oxygen distribution. The three-way connector 50, acting as a connector between the oxygen delivery tube 10 and the oxygen branch tube 30, enhances the stability and reliability of the entire nasal oxygen tubing structure, ensuring smoother oxygen delivery and reducing the risk of oxygen leakage due to loose connections. The use of the three-way connector 50 also makes the various parts of the nasal oxygen tubing more modular.

[0047] In some embodiments of this application, both oxygen delivery branches 30 of the dual-port nasal oxygen cannula for reducing nasal and facial pressure are equipped with snap-on sliding retainers 32, as shown in the reference. Figure 2 As shown, the snap-on sliding fastener 32 includes a snap-on 321, a pressure-reducing layer 322, and an adhesive layer 323. One side of the pressure-reducing layer 322 is fixed to the snap-on 321, and the adhesive layer 323 is attached to the side of the pressure-reducing layer 322 away from the snap-on 321. The snap-on 321 is snapped onto the oxygen supply branch pipe 30 and is slidably connected to the oxygen supply branch pipe 30.

[0048] The snap-on sliding retainer 32 in this embodiment provides a stable fixation effect while reducing pressure on the skin of the nose and face.

[0049] Specifically, the buckle 321, as the main structure of the snap-on sliding fastener 32, is designed with a groove or ring that matches the oxygen supply branch tube 30, allowing it to be tightly fastened to the oxygen supply branch tube 30. The buckle 321 and the oxygen supply branch tube 30 are connected by a sliding connection, allowing the user to adjust the position of the snap-on sliding fastener 32 as needed.

[0050] The pressure-reducing layer 322 is located between the buckle 321 and the skin, and is made of a soft, breathable material, such as sponge, silicone, or memory foam. Its main function is to distribute the pressure of the buckle 321 on the skin and reduce discomfort when wearing the nasal cannula for a long time.

[0051] The adhesive layer 323 is attached to the side of the pressure-reducing layer 322 away from the buckle 321, and is made of medical-grade adhesive material with good adhesion and breathability. The adhesive layer 323 not only enhances the fit between the buckle-type sliding fixator 32 and the skin, but also ensures the stability of the nasal oxygen tube during wear.

[0052] The sliding connection between the buckle 321 and the oxygen delivery tube 30, along with the close fit between the adhesive layer 323 and the skin, ensures the stability of the nasal oxygen tube during wear, reducing the risk of dislodgement due to movement or activity. The pressure-reducing layer 322 effectively disperses the pressure of the buckle 321 on the skin, reducing pressure and discomfort during prolonged wear. Simultaneously, the breathability of the adhesive layer 323 prevents the skin from becoming damp and stuffy due to prolonged contact. The sliding connection between the buckle 321 and the oxygen delivery tube 30 allows users to adjust the position of the sliding buckle 32 according to their individual needs, thus finding the most suitable wearing method.

[0053] In use, align the snap-on sliding retainer 321 with the oxygen delivery tube 30 and slide it along the tube to the desired position. Ensure the snap-on 321 is securely fastened to the oxygen delivery tube 30, while the pressure-reducing layer 322 and adhesive layer 323 adhere to the patient's skin. Through the snap-on sliding retainer 32 structure, the embodiments of this application not only improve the stability and comfort of the nasal oxygen tube but also solve problems such as easy dislodgement and pressure on the nasal and facial skin associated with traditional nasal oxygen tubes.

[0054] In some embodiments of this application, the pressure-reducing layer 322 is made of foam material, and the adhesive layer 323 is made of silicone gel or medical pressure-sensitive adhesive.

[0055] Understandably, the foam material, with its excellent elasticity and resilience, effectively disperses and alleviates the pressure exerted on the skin by the buckle 321. It adapts to the contours and shape of the skin, thus preventing pain and discomfort caused by excessive localized pressure. Simultaneously, its good breathability reduces the accumulation of moisture and heat between the skin and the buckle-type sliding fixation device 32, keeping the skin dry and comfortable. The foam material is soft and will not cause irritation or friction to the skin, making it suitable for nasal cannula designs that require prolonged wear.

[0056] Both silicone gel and medical pressure-sensitive adhesive have strong adhesion, allowing them to adhere firmly to the skin and maintain a stable fit even during exercise or sweating. This adhesion ensures the stability of the nasal oxygen cannula during wear, reducing the risk of dislodgement. At the same time, both materials are gentle and non-irritating to human skin. This is especially important for patients who need to use nasal oxygen cannulas long-term, avoiding discomfort caused by skin sensitivity or allergies. Silicone gel and medical pressure-sensitive adhesive do not pull on the skin or leave residue when removed, thus reducing additional damage to the skin. Furthermore, both materials are easy to clean and maintain, extending the lifespan of the nasal oxygen cannula.

[0057] In some embodiments of this application, the thickness of the pressure-reducing layer 322 is 2-3 mm, and the thickness of the adhesive layer 323 is 0.8-1.5 mm; the inner diameter of the buckle 321 is the same as the diameter of the oxygen supply branch pipe 30, the width of the pressure-reducing layer 322 and the adhesive layer 323 is also the same as the diameter of the oxygen supply branch pipe 30, and the length of the pressure-reducing layer 322 and the adhesive layer 323 is 0.5 cm.

[0058] Specifically, the thickness of the pressure-reducing layer 322 is controlled within the range of 2-3mm, which can effectively disperse the pressure exerted on the skin by the buckle 321. This thickness is neither too thin, causing pressure concentration, nor too thick, increasing the burden of wearing, thus providing optimal comfort while ensuring the fixation effect. The thickness of the adhesive layer 323 is controlled within the range of 0.8-1.5mm, and its thin structure makes it easy to tear off without affecting the fixation of other structures.

[0059] Furthermore, the precise matching of the inner diameter of the buckle 321 with the diameter of the oxygen delivery tube 30 ensures the tightness and stability of the nasal oxygen tube during sliding connection. This precise diameter matching also allows the oxygen delivery tube 30 to slide smoothly within the buckle 321, facilitating adjustments by the patient as needed and improving ease of use. The widths of the pressure-reducing layer 322 and the adhesive layer 323 are the same as the diameter of the oxygen delivery tube 30, helping to distribute pressure evenly on the skin and avoiding discomfort caused by excessive local pressure. This not only ensures the practicality of the nasal oxygen tube but also makes its appearance neater and more aesthetically pleasing, enhancing the patient's wearing experience.

[0060] The pressure-reducing layer 322 and the adhesive layer 323 are 0.5cm long, providing sufficient coverage area to ensure the stability and comfort of the nasal oxygen cannula during fixation. This length is neither too long, which would lead to unnecessary material waste, nor too short, which would affect the fixation effect.

[0061] The design of the structural parameters of the snap-on sliding fixator 32 in the embodiments of this application not only improves the fixation stability and oxygen delivery efficiency of the nasal oxygen tube, but also ensures the patient's wearing comfort and user experience. It fully considers the actual needs and usage scenarios of patients, providing a more considerate, safe, and effective solution for patients who need to wear nasal oxygen tubes for extended periods.

[0062] In some embodiments of this application, the nasal plug connector 41 is an inverted trapezoid, and the width of the nasal plug connector 41 gradually narrows from the end connected to the branch tube connector 40 to the end away from the branch tube connector 40. The inverted trapezoidal structural design makes it easier for the nasal plug connector 41 to be inserted into the nasal cavity, while providing a better seal.

[0063] Existing nasal plug connectors 41 are generally cylindrical, which cannot fit the shape of the patient's nasal cavity, easily causing discomfort or damage to the nasal cavity. In this embodiment, the inverted trapezoidal nasal plug connector 41, through its gradually narrowing design, can gradually adapt to the shape of the nasal cavity when inserted, reducing the resistance during insertion, avoiding pressure on the nasal cavity, and improving wearing comfort.

[0064] In actual use, the patient simply needs to gently insert the inverted trapezoidal nasal plug connector 41 into the nasal cavity. Due to its gradually narrowing design, the insertion process is smoother. After insertion, the nasal plug connector 41 will fit tightly against the inner wall of the nasal cavity, ensuring effective oxygen delivery. This embodiment solves the problem of pressure and damage to the nasal cavity caused by the insertion of traditional nasal oxygen cannula connectors.

[0065] In some embodiments of this application, reference is made to Figure 3 As shown, the end of the nasal plug connector 41 away from the branch pipe connector 40 is provided with multiple buffer holes 411.

[0066] Understandably, the design of the buffer hole 411 helps reduce the pressure of the nasal plug connector 41 on the nasal cavity wall, improving wearing comfort. Specifically, oxygen can be dispersed through the buffer hole 411 and inhaled by the patient, preventing oxygen from rushing directly into the nasal cavity and reducing irritation to the nasal cavity when oxygen rushes out. This embodiment, by adding the buffer hole 411, enables the nasal oxygen cannula to provide effective oxygen delivery while reducing irritation and discomfort to the nasal cavity.

[0067] In some embodiments of this application, the nasal plug connector 41 is made of silicone. The silicone nasal plug connector 41 provides excellent comfort and a tight seal. Its softness allows the connector to better conform to the shape of the nasal cavity, reducing oxygen impact on the nasal cavity and thus alleviating dryness and bleeding of the nasal mucosa, reducing discomfort; while its elasticity helps maintain a tight fit between the connector and the nasal cavity, preventing oxygen leakage. Furthermore, silicone has good biocompatibility and will not cause irritation or allergic reactions in the nasal cavity.

[0068] Furthermore, the silicone material avoids the problems associated with overly rigid nasal plug connectors in nasal oxygen cannulas, such as poor sealing and a tendency to trigger allergic reactions. The silicone nasal plug connector 41 not only improves wearing comfort but also enhances sealing and safety.

[0069] In some embodiments of this application, foam material is provided below the nasal plug connector 41 and branch connector 40 of the dual-hole nasal oxygen tube for relieving nasal and facial pressure. The foam material has a thickness of 2-3 mm. The foam material includes an upper layer, a middle layer and a bottom film. The upper layer is an adhesive layer, the middle layer is a composite polyurethane foam core, and the bottom film is a PU waterproof protective layer.

[0070] Understandably, foam padding is tightly fitted below the nose plug connector 41 to ensure that the foam padding effectively distributes the pressure of the nose plug connector on the nose and face when worn. Foam padding is also provided below the branch connector 40 to provide additional cushioning and protection for the part of the branch that comes into contact with the skin.

[0071] The upper layer directly contacts the nasal plug connector 41 and the branch tube connector 40, ensuring that the foam material adheres firmly to the nasal oxygen tube; the middle layer serves as the main buffer layer, providing a comfortable wearing experience; the bottom film is located at the bottom of the foam material, preventing moisture and dirt from seeping in and keeping the material clean and dry. This reduces pressure on the nasal mucosa and skin.

[0072] The composite polyurethane foam core features excellent breathability and moisture absorption, keeping the nose and face dry and comfortable. Its superior elasticity and resilience effectively distribute pressure, reducing the pressure exerted on the nose and face by the nasal plug connector 41 and branch connector 40. The PU material offers excellent waterproofing, effectively preventing the penetration of moisture and dirt, keeping the foam applicator clean and dry. Furthermore, the PU material exhibits good abrasion resistance and anti-aging properties, extending the service life of the foam applicator.

[0073] The thickness of the foam padding is controlled within the range of 2-3mm, which provides sufficient cushioning and comfort without adding too much burden to the wearer. This thickness design allows the foam padding to fit closely to the skin of the nose and face without causing excessive pressure.

[0074] The foam insert design used in this embodiment, through its rational three-layer structure and high-quality material selection, effectively reduces pressure on the nose and face, improves wearing comfort, and extends the lifespan of the nasal oxygen cannula. This design not only enhances the patient's user experience but also provides a safer and more reliable oxygen delivery method.

[0075] In some embodiments of this application, the total length of the nasal oxygen cannula is 150-180 mm.

[0076] The nasal oxygen cannula is designed to be 150-180mm long, covering the needs of most patients. It is not too short to restrict the patient's range of motion. For patients of different heights, body types, and usage habits, the length of 150mm or more provides sufficient flexibility and adaptability, ensuring the nasal oxygen cannula fits comfortably against the patient's nose and face without hindering their daily activities.

[0077] Meanwhile, a length of less than 180mm helps reduce oxygen leakage and waste during delivery. When the nasal cannula is of appropriate length, it fits better into the patient's nasal cavity, forming an effective seal. This not only improves oxygen delivery efficiency but also reduces safety hazards caused by oxygen leakage.

[0078] When using the dual-port nasal oxygen cannula for reducing nasal and facial pressure, first, ensure the integrity of the nasal oxygen cannula, and then connect the oxygen connector, oxygen delivery tube, three-way valve, oxygen delivery branch tube, and branch tube connector in sequence. Adjust the length of the nasal oxygen cannula according to the patient's height, body type, and usage habits. Next, insert the nasal plug connector into the patient's nasal cavity, adjust the snap-on sliding fixator to a suitable position, and secure the snap-on sliding fixator to the patient's face, behind the ears, etc. Finally, connect the oxygen source; the oxygen flow rate can be adjusted by sliding the buckle to begin providing oxygen to the patient. This dual-port nasal oxygen cannula effectively reduces or avoids pressure injury to the skin, protects the integrity of the patient's facial and nasal skin, improves comfort, and gains high patient cooperation for better treatment results. It is suitable for patients requiring continuous low-flow oxygen therapy who are malnourished or have impaired facial skin integrity. The nasal plug connector of the nasal oxygen cannula causes pressure on the nasal cavity and uneven oxygen distribution. By adding a buffer hole, the nasal oxygen cannula can provide effective oxygen delivery while reducing irritation and discomfort to the nasal cavity.

[0079] Other embodiments of this disclosure will be readily apparent to those skilled in the art upon consideration of the disclosure in the specification and examples. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

Claims

1. A dual-port nasal oxygen cannula for relieving pressure on the nasal face, characterized in that, include: Oxygen supply tube (10), oxygen connector (20), oxygen supply branch tube (30) and branch tube connector (40); One end of the oxygen delivery tube (10) is connected to one end of the oxygen connector (20), and the other end of the oxygen connector (20) is connected to the oxygen source; The other end of the oxygen delivery pipe (10) is connected to one end of the two oxygen delivery branch pipes (30) arranged in parallel, and the other end of the two oxygen delivery branch pipes (30) is connected to the branch pipe joint (40). The branch pipe connector (40) is provided with a nasal plug connector (41), and the nasal plug connector (41), the branch pipe connector (40) and the oxygen delivery branch pipe (30) are all connected. The oxygen supply branch pipe (30) is provided with a sliding buckle (31), and the sliding buckle (31) is fastened to one end of the two oxygen supply branch pipes (30) that are close to the oxygen supply pipe (10) and are side by side; The sliding buckle (31) is provided with a pulley and an inclined slide. One end of the inclined slide is close to the surface of the two oxygen supply branches (30), and the other end is far away from the two oxygen supply branches (30). The pulley is embedded in the inclined slide and is in rolling connection with the inclined slide; Both oxygen supply branch pipes (30) are provided with a snap-on (321) type sliding fastener (32); The snap-on (32) type sliding fastener (32) includes a snap-on (321), a pressure-reducing layer (322) and an adhesive layer (323). One side of the pressure-reducing layer (322) is fixed to the snap-on (321), and the adhesive layer (323) is attached to the side of the pressure-reducing layer (322) away from the snap-on (321). The buckle (321) is fastened to the oxygen supply branch pipe (30) and is slidably connected to the oxygen supply branch pipe (30); The nasal plug connector (41) is an inverted trapezoid, and the width of the nasal plug connector (41) gradually narrows from the end connected to the branch pipe connector (40) to the end away from the branch pipe connector (40). The end of the nasal plug connector (41) away from the branch connector (40) is provided with multiple buffer holes (411).

2. The dual-hole nasal oxygen cannula for reducing nasal and facial pressure according to claim 1, characterized in that, It also includes a tee pipe (50); The three-way pipe (50) is located between the oxygen supply pipe (10) and the oxygen supply branch pipe (30). The three-way pipe (50) has a first interface (51) on one side and a second interface (52) and a third interface (53) on the other side. The first interface (51) is connected to the oxygen supply tube (10), and the second interface (52) and the third interface (53) are respectively connected to the two oxygen supply branches (30).

3. A dual-port nasal oxygen cannula for reducing nasal and facial pressure according to claim 1, characterized in that, The pressure-reducing layer (322) is made of foam, and the adhesive layer (323) is made of silicone gel or medical pressure-sensitive adhesive.

4. A dual-port nasal oxygen cannula for reducing nasal and facial pressure according to claim 1, characterized in that, The pressure-reducing layer (322) has a thickness of 2-3 mm, and the adhesive layer (323) has a thickness of 0.8-1.5 mm; The inner diameter of the buckle (321) is the same as the diameter of the oxygen supply branch pipe (30), the width of the pressure relief layer (322) and the adhesive layer (323) is also the same as the diameter of the oxygen supply branch pipe (30), and the length of the pressure relief layer (322) and the adhesive layer (323) is 0.5cm.

5. A dual-port nasal oxygen cannula for reducing nasal and facial pressure according to claim 1, characterized in that, The nose plug connector (41) is made of silicone.

6. A dual-port nasal oxygen cannula for reducing nasal and facial pressure according to claim 1, characterized in that, Foam material is provided below both the nasal plug connector (41) and the branch pipe connector (40), and the thickness of the foam material is 2-3mm. The foam material includes an upper layer, a middle layer, and a bottom film. The upper layer is an adhesive layer, the middle layer is a composite polyurethane foam core, and the bottom film is a PU waterproof protective layer.

7. A dual-port nasal oxygen cannula for reducing nasal and facial pressure according to claim 1, characterized in that, The total length of the nasal oxygen cannula is 150-180mm.

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